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1,6-dibromo-3,8-bis-(α-hydroxy-benzhydryl)-pyrene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

202974-50-3

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202974-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202974-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,9,7 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 202974-50:
(8*2)+(7*0)+(6*2)+(5*9)+(4*7)+(3*4)+(2*5)+(1*0)=123
123 % 10 = 3
So 202974-50-3 is a valid CAS Registry Number.

202974-50-3Downstream Products

202974-50-3Relevant academic research and scientific papers

Conformational Studies of Phenyl- and (1-Pyrenyl)triarylmethylcarbenium Ions: Semiempirical Calculations and NMR Investigations under Stable Ion Conditions

Hansen, Poul Erik,Spanget-Larsen, Jens,Laali, Kenneth K.

, p. 1827 - 1835 (2007/10/03)

Highly stable crowded carbenium ions such as (1-pyrenyl)diphenylmethylcarbenium ion (2) and 1,6- (3) and 1,8-bis(diphenylmethylenium)pyrene [dication] (4) and their dibrominated analogues (3Br and 4Br) have been studied at low and at ambient temperatures.

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